Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Combination of cascade and pole changing Rheostat control Cascade control Pole changing Combination of cascade and pole changing Rheostat control Cascade control Pole changing ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following is the voltage for single phase A.C. system? 220 v 11 kV 220 V 5 kV 220 v 11 kV 220 V 5 kV ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of ___________ free running and coasting periods are generally long. Mainline service All of the listed here Suburban service Urban service Mainline service All of the listed here Suburban service Urban service ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of a steam engine an average coal consumption per km is nearly 28 to 30 kg 150 to 175 kg 100 to 120 kg 60 to 80 kg 28 to 30 kg 150 to 175 kg 100 to 120 kg 60 to 80 kg ANSWER DOWNLOAD EXAMIANS APP
Electric Traction An ideal traction system should have Equipment capable of withstanding large temporary loads Easy speed control All of the listed here High starting tractive effort Equipment capable of withstanding large temporary loads Easy speed control All of the listed here High starting tractive effort ANSWER DOWNLOAD EXAMIANS APP
Electric Traction When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when Both of the listed here Wheel base of axles is more Degree of curvature is more None of the listed here Both of the listed here Wheel base of axles is more Degree of curvature is more None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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